Ontologia

HydroBASINS lev08 watershed · #4080508190

Bassin de 須川

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 13 administrative regions : Higashine, Kaminoyama, Kawasaki, Nakayama, Nan'yo +8

Pfafstetter: 41301348

Sub-basin area

676,6km²

Upstream area

676,6km²

Discharge

18,05m³/s

Mean elev.

471m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 最上川23 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

13 dept-equivalent regions (GADM L2)

5 more

15 intersecting protected areas

  • Zao

    IUCN V

    Quasi National Park

    190.38 km² overlap

  • Zao

    IUCN IV

    Prefectural Wildlife Protection Area

    54.09 km² overlap

  • Ouu Mountain Range

    IUCN V

    Green Corridor

    23.00 km² overlap

  • Zao

    IUCN IV

    Biocenosis Protected Forest

    17.64 km² overlap

  • Chokai-Asahi and Iide-Azuma

    IUCN V

    Green Corridor

    13.08 km² overlap

  • Kyozukayama

    IUCN IV

    Prefectural Wildlife Protection Area

    9.16 km² overlap

  • Kennan

    IUCN V

    Prefectural Natural Park

    5.97 km² overlap

  • Atagoyama

    IUCN IV

    Prefectural Wildlife Protection Area

    5.31 km² overlap

  • Zao renpo

    IUCN IV

    Prefectural Wildlife Protection Area

    3.34 km² overlap

6 more protected areas

  • Onuma

    IUCN IV

    Prefectural Wildlife Protection Area

    1.55 km² overlap

  • Tendo kogen

    IUCN V

    Prefectural Natural Park

    1.11 km² overlap

  • Chitoseyama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.62 km² overlap

  • Futakuchi kyokoku

    IUCN V

    Prefectural Natural Park

    0.38 km² overlap

  • Zao kogen

    IUCN V

    Prefectural Natural Park

    0.21 km² overlap

  • Yusenkyo Kuri Idenshigen

    IUCN IV

    Rare Population Protected Forest

    0.11 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

3 068 distinct species · 21 479 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

21 479 obs · 21 cellules
Obs. / cellule
≥ 3 669
1 720–3 668
1 446–1 719
856–1 445
< 856

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 33 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de 須川 : 26 espèces reliées par 38 interactions GloBI sur 4 types (connectance 6.8%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
38
Connectance
0.068
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

9,8°C

Annual rain

1 476mm

Moisture idx (CMI)

0,39

Runoff

841mm/an

PET

894mm

AET

837mm

Mean slope

11,5°

Water table

334cm

Forest

63%

Crops

9%

Urban

22%

Protected

32%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)